RAGISTRATION FAILED I HAVE MICROMAX MOBILE MODEL NO X1i its shows us on error, registration failed and invalid sim plz help me give me solution thank you

try to reset factory settings by 2945#*# and select factory settings.this will solve, if problem persist make sure if your SIM is compatible to your device (this happen many times when SIM is old and not 3G configured, maybe it is work on another device but this device will reject).

The phone has hung up because there are errors in the software. So to reset remove the battery and the memory card from the phone. Using your PC , scan the memory card for any corrupt files or media files with virus- it is possible when they are downloaded from unsafe sites. If so remove or format the card. Now replace the card and battery and switch on the phone. If the phone hangs up then it is confirmed that the software is corrupt and will need a reinstallation. Seeking help from the authorized service /support centre is most ideal. Take estimate and decide.

i forgot the unlock code of my micromax x1i how can i unlock it the imei number is 910536002599449 and 910536002599431 pleaz solve my problem

Micromax x1i is insert sim

this problem shows the registration of the sim was failed , you can take a duplicate sim of the same number and try .

i have a china made mobile n8 but after inserted it shows invalid sim what's the solution of this problem

i want micromax x1i for software

i have micromax mobile model x1i the problem is Sim registration failed but sim track are ok please help me out to solve the problem sir.

You have to first unlock it..

i have the sme problem